40443832388 has 12 divisors (see below), whose sum is σ = 74940042492. Its totient is φ = 19032391680.

The previous prime is 40443832333. The next prime is 40443832391. The reversal of 40443832388 is 88323834404.

It can be written as a sum of positive squares in 2 ways, for example, as 11893647364 + 28550185024 = 109058^2 + 168968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297381053 + ... + 297381188.

It is an arithmetic number, because the mean of its divisors is an integer number (6245003541).

Almost surely, 2^40443832388 is an apocalyptic number.

It is an amenable number.

40443832388 is a deficient number, since it is larger than the sum of its proper divisors (34496210104).

40443832388 is a wasteful number, since it uses less digits than its factorization.

40443832388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594762262 (or 594762260 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 47.

The spelling of 40443832388 in words is "forty billion, four hundred forty-three million, eight hundred thirty-two thousand, three hundred eighty-eight".